Caused by: java.lang.IllegalArgumentException: Can not set static javassist.util.proxy.MethodFilter field com.sdhy.hycbinfo.entitybeans.TProvinceinfo_$$_javassist_0._method_filter to org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer$1at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146)at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150)at sun.reflect.UnsafeStaticObjectFieldAccessorImpl.set(UnsafeStaticObjectFieldAccessorImpl.java:61)at java.lang.reflect.Field.set(Field.java:657)at javassist.util.proxy.ProxyFactory.setField(ProxyFactory.java:352)... 76 more